NMFSeed-class: Base class that defines the interface for NMF seeding...
In NMF: Algorithms and Framework for Nonnegative Matrix Factorization (NMF)

NMFSeed-class

R Documentation

Base class that defines the interface for NMF seeding methods.

Description

This class implements a simple wrapper strategy object that defines a unified interface to seeding methods, that are used to initialise NMF models before fitting them with any NMF algorithm.

Slots

name: character string giving the name of the seeding strategy
method: workhorse function that implements the seeding strategy. It must have signature (object="NMF", x="matrix", ...) and initialise the NMF model object with suitable values for fitting the target matrix x.

Methods

algorithm: signature(object = "NMFSeed"): Returns the workhorse function of the seeding method described by object.
algorithm<-: signature(object = "NMFSeed", value = "function"): Sets the workhorse function of the seeding method described by object.
NMFSeed: signature(key = "NMFSeed"): Creates an NMFSeed based on a template object (Constructor-Copy), in particular it uses the same name.
show: signature(object = "NMFSeed"): Show method for objects of class NMFSeed